1. The south exit is close to the bus stop.

Question

2. The south exit is close by the bus stop.

3. The south exit is near by the bus stop.

4. The south exit is nearby the bus stop.

5. The south exit is next to the bus stop.
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Which ones are grammatical? What other expressions can we use instead of 'close to'?

Answer 1

#3 is incorrect. "near by" should be "nearby" as in #4.
Alternatives: "The south exit is near the bus stop." "The south exit is adjacent to the bus stop." "The south exit is near the bus stop."

Answer 2

#s 3 and 4 are incorrect.

The others are fine, and Reed's examples are fine, too.